Instead of the normal 28 days, I only go 23 days. However, recently I've been only going around 14 days, having 3 periods within a 6-7 week time period. I thought the 23 days was a bit off but now it's even a shorter time?? I was thinking of taking birth control pills just to keep it regulated since I know I've been under a lot of stress. Is this something that I should see a doctor over?